Most of the focus has been on the Clinton-Obama battle in Texas and Ohio, but John McCain tonight could put an official end to the battle for the GOP presidential nomination.

McCain has 1,014 of the 1,191 delegates needed for the nod, and with 256 GOP delegates up for grabs tonight, will find himself in the promised land if he gets 177 delegates.

McCain's lone remaining opponent, Mike Huckabee, today acknowledged that he would have some serious thinkin' to do tomorrow morning.

With the nomination almost in his grasp, McCain is now looking at who is running mate could be.

Among the possibilities, according to media reports: Colin Powell and General David Petraeus; Huckabee and Haley Barbour, both of whom would placate the right; Sen. Kay Bailey Hutchison, and Govs. Charlie Crist of Florida, Tim Pawlenty of Minnesota and Mark Sanford of South Carolina.